Vacuum Interrupters for Circuit Breakers

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Update Time:2013-11-25Vacuum Interrupters for Circuit Breakers


Product Name:Vacuum Interrupters for Circuit Breakers

Item No:TD-1.14/630-12.5B

The Interrupter adopts “one shut technology”, ceramic shell, CuWC as the contact material;is characterized by high insulation, low stop-flow, strong blowout ability , long life, smallsize etc, and has advantages as easy to maintain, no explosion risk ,pollution-free and lownoise etc. Contactors assembled by it are used to control and protect the electricity transmission and distribution system in electrical, mechanical, chemical, metallurgy, mining and railway department, especially in frequent operation fields.

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TD-1.14/630-12.5B Product Introduce

Technical Parameters
Rated working voltage (kV) 1.14
Rated working current (A) 630
Rated short-circuit breaking
current/breaking times: (KA/times) 12.5/30
Rated short-time withstand
current /duration (KA/S) 12.5/4
1 minute withstand voltage (KV) 10
Mechanical Life: (times) 10000
Contact automatic
closing Force: (N) 95±15
Contact Max stroke: (mm) 4.5
counterforce at contact rated stroke(N) 120±20
contact resistance under contact automatic
Closing pressure (uΩ) ≤100
contact erosion limit (mm) 1.5
Interrupter Max weight (Kg) 1.5
Storage duration (year) 15
The specification required of the contactor structure
Contact rated stroke (mm) 4±0.5
Contact Overtravel (mm) 1.5±0.2
Average opening speed (m/s) 1±0.2
Average closing speed (m/s) 0.6±0.1
Rated contact working pressure (N) 250±20
Contact closing bounce time (ms) ≤1.5
Three-phases synchronization (ms) ≤1

outline drawing